LTC4306CUFD#TRPBF Multiplexer Switch ICs 4-Ch 2-Wire Bus Multxer W/ Capacitance
LTC4306CUFD#TRPBF
,LTC4306CUFD#TRPBF Multiplexer Switch ICs
LTC4306CUFD#TRPBF Multiplexer Switch ICs 4-Ch, 2-Wire Bus Multxer w/ Capacitance
| Linear Technology | |
| Product Category: | Multiplexer Switch ICs |
| RoHS: | Details |
| LTC4306 | |
| Multiplexers | |
| SMD/SMT | |
| QFN-24 | |
| Reel | |
| Brand: | Linear Technology |
| Product Type: | Multiplexer Switch ICs |
| 2500 | |
| Subcategory: | Switch ICs |
Description
The LTC*4306 is a 4-channel, 2-wire bus multiplexer with
bus buffers to provide capacitive isolation between the
upstream bus and downstream buses. Through software
control, the LTC4306 connects the upstream 2-wire bus to
any desired combination of downstream buses. Each
channel can be pulled up to a supply voltage ranging from
2.2V to 5.5V, independent of the LTC4306 supply voltage.
The downstream channels are also provided with
ALERT1-ALERT4 inputs for fault reporting.
Programmable timeout circuitry disconnects the down-
stream buses if the bus is stuck low. When activated, rise
time accelerators source currents into the 2-wire bus pins
to reduce rise time. Driving the ENABLE pin low restores
all features to their default states. Three address pins
provide 27 distinct addresses.
The LTC4306 is available in 24-lead QFN (4mm x 5mm)
and SSOP packages.
FEATURES
■ 1:4 2-Wire Multiplexer/Switch
■Connect SDA and SCL Lines with 2-Wire Bus
Commands
■Supply Independent Bidirectional Buffer for SDA
and SCL Lines Increases Fan-Out
■Programmable Disconnect from Stuck Bus
■Compatible with I2C and SMBus Standards
■Rise Time Accelerator Circuitry
■SMBus Compatible ALERT Response Protocol
■Two General Purpose Inputs-0utputs
■Prevents SDA and SCL Corruption During Live Board
Insertion and Removal from Backplane
■+10kV Human Body Model ESD Ruggedness
■24-Lead QFN (4mm x 5mm) and SSOP Packages
APPLICATIONS
■Nested Addressing
■5V/3.3V Level Translator
■Capacitance Buffer/Bus Extender
specifications
-
I2C Bus Buffer: The LTC4306CUFD#TRPBF acts as a bidirectional buffer for I2C bus signals, providing level shifting
and isolation between devices.
-
Voltage Level Translation: The IC enables communication between I2C devices operating at different voltage levels,
allowing for compatibility between devices with varying voltage requirements.
-
Bus Buffering: The LTC4306CUFD#TRPBF buffers and isolates the I2C bus signals, ensuring signal integrity and
preventing device contention issues.
-
Automatic Bus Releasing: The IC incorporates automatic bus release circuitry, which can detect and resolve bus
lock-up conditions by disconnecting and reconnecting the bus lines.
-
Low Voltage Operation: The LTC4306CUFD#TRPBF is designed to operate at low voltage levels, typically ranging
from 1.8V to 5V, making it suitable for a wide range of applications.
-
Fast Mode Plus (Fm+) Compatible: The IC is compatible with the Fast Mode Plus (Fm+) I2C bus specification,
supporting data rates up to 1 MHz.
-
Package: The LTC4306CUFD#TRPBF is available in a 16-lead QFN (Quad Flat No-Lead) package.
